400940467 has 2 divisors, whose sum is σ = 400940468. Its totient is φ = 400940466.

The previous prime is 400940437. The next prime is 400940539. The reversal of 400940467 is 764049004.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400940467 is a prime.

It is not a weakly prime, because it can be changed into another prime (400940437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200470233 + 200470234.

It is an arithmetic number, because the mean of its divisors is an integer number (200470234).

Almost surely, 2^400940467 is an apocalyptic number.

400940467 is a deficient number, since it is larger than the sum of its proper divisors (1).

400940467 is an equidigital number, since it uses as much as digits as its factorization.

400940467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 400940467 is about 20023.4978712512. The cubic root of 400940467 is about 737.3832994317.

The spelling of 400940467 in words is "four hundred million, nine hundred forty thousand, four hundred sixty-seven".